Millermatic 211

Ive a Coleman Powermate 6250 generator and Im wanting to make a 220V extension cord to power my Millermatic 211 welding machine. The generator has a 4 pin connection feminine touch while the welder has a 3-pin male connector grow. What to do? Thank you.

The twist 4-pin ... More than likely, a 20 amps 240 "twist lock" V, 4 - The end of wire 3-pin power cord is probably 240 volts, but your info does not give me amp. In small raised letters on the side opposite the device (either the cord or plug container) there are usually numbers and / or "NEMA" code. # If the hat cord is over 20 and the amperage of the welder is over 20 (which I'm sure there are probably 50 or more), the generator will be too small for the welder. Stop ... You're wasting your time. This generator (By serial #) appears to be 2500 watts @ 120 volts = 20.83 amps. peak capacity. I can only guess about the consumption requirements of your welder.